How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/18100.0*Average seed
UCLA 14 USC 36 +0.7
California 31 Stanford 45 -0.2
Colorado 38 Washington_State 24 -0.1
Washington 44 Arizona_State 18 -0.1
Utah 28 Oregon 30 +0.1
If winner is:HomeHome OTAway OTAway
Week of 11/25100.0*Average seed
USC vs Notre_Dame+1.0+1.0-1.0-1.0
Washington_State vs Washington-0.4-0.4+0.4+0.4
Stanford vs Rice-0.3-0.2+0.3+0.3
Colorado vs Utah-0.1-0.1+0.1+0.1

What If

Chances based on how well the USC finish out the regular season.   Explain

100100100100100100100100100100100100100100
If finish:Chance will finish regular season at seed
TWW-LChance wins regular season title1234567891011121314Count
70-0No2512125055,866,480
Total:No2512125055,866,480
Games Above .500
Chance Will Win Regular Season Title